Free Printable Genetics and Variables

1.

Research question: does the distance a person kicks a soccer ball effect how well they will do on their math test. What is the dependent variable?

a)

How far they kick the soccer ball

b)

who the person is

c)

how well they do on the math test

d)

Type of soccer ball.

2.

What would the INDEPENDENT variable be in an experiment testing which types of paper airplane goes furthest?

a)

the paper used

b)

the type of paper airplane

c)

the distance of each plane's flight

d)

how hard the plane is thrown

3.

Research Question: Does the type of gasoline put in a car effect how fast the car can drive. What is the independent variable?

a)

Type of gasoline

b)

which car the gas is put into

c)

how fast the car can drive

d)

how much gas is put into the car

4.

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is not a constant?

a)

The type of plant

b)

The amount of sunlight

c)

The type of music

d)

The type of liquid

5.

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the dependent variable?

a)

Type of plant

b)

Water, apple juice, milk

c)

Plant growth

d)

Color of the plant's leaves

6.

Mr. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.

a)

Distance traveled by the ball

b)

Height of the ramp

c)

Mass of the ball

d)

Who set up the experiment (Ms. S, etc)

7.

Mr. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?

a)

Distance traveled by the ball

b)

Height of the ramp

c)

Mass of the ball

d)

Where the experiment took place.

8.

Maria wants to know if birds prefer to eat in one place over another. She makes three feeders out of 2-liter bottles and paints all of them red. She fills each of the feeders with the same amount of mixed birdseed, and plans to keep the feeders out for 10 days before measuring how much seed is eaten from each feeder. She puts each of the feeders in her back yard: one feeder in a large dead tree, another feeder she sits on the dog house, and the last she sits in a small bushy tree.
What is the dependent variable?

a)

Length of the birdfeeders

b)

Amount of time feeders are outside

c)

Amount of seed eaten

d)

Location the feeders are put in.

9.

Maria wants to know if birds prefer to eat in one place over another. She makes three feeders out of 2-liter bottles and paints all of them red. She fills each of the feeders with the same amount of mixed birdseed, and plans to keep the feeders out for 10 days before measuring how much seed is eaten from each feeder. She puts each of the feeders in her back yard: one feeder in a large dead tree, another feeder she sits on the dog house, and the last she sits in a small bushy tree.
What are the constants?

a)

Length of the birdfeeders

b)

Amount of time feeders are outside, type of bird seed

c)

Amount of seed eaten

d)

Location the feeders are put in.

10.

Experiment: Does the flavor of ice cream effect how fast the ice cream melts?
The flavor of ice cream is the ___________ variable.

a)

independent

b)

dependent

11.

Experiment: Does changing the wing shape to make it more narrow affect the distance a paper airplane will fly?

The wing shape is the ___________ variable.

a)

independent

b)

dependent

12.

Experiment: How does watching TV during studying affect a student’s test grades?

The students grades are the ___________ variable.

a)

independent

b)

dependent

13.

Experiment: Do roses grow more in height in partial or direct sunlight?
The growth height is the ____________ variable.

a)

independent

b)

dependent

14.

The dependent variable is the one

a)

you measure.

b)

you change.

15.

The independent variable is the

a)

one you measure.

b)

one you change.

16.

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.

a)

Diameter of the ball

b)

Force acting on the ball

c)

Height that the ball bounces

d)

Height from which the ball is dropped

17.

Mr. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.

a)

Distance traveled by the ball

b)

Height of the ramp

c)

Mass of the ball

18.

Gregor Mendel is known as the:

a)

Father of Genetics

b)

Father of Heredity

c)

Father of Pea Plants

d)

Father of the Punnett Square

19.

Heterozygous is when...

a)

the alleles are the same

b)

the alleles are different

c)

the alleles are absent

d)

the alleles are present

20.

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

a)

recessive

b)

dominant

c)

lower case letter

d)

both

21.

T - tall and t = short
In the punnett square below, what belongs in the missing square

a)

tt

b)

Tt

c)

Bb

d)

TT

22.

G = green, g = yellow
The genotype for a yellow plant is...

a)

GG

b)

Gg

c)

gg

d)

all of the choices result in yellow

23.

In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?

a)

0%

b)

25%

c)

50%

d)

75%

24.

B = brown fur b = white fur
In the punnett square, what is the probability for white fur?

a)

0%

b)

25%

c)

50%

d)

75%

25.

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

a)

0 %

b)

25%

c)

50%

d)

75%

26.

Which of the following alleles is homozygous (purebred) recessive?

a)

Tt

b)

tt

c)

TT

d)

t

27.

Aa is

a)

homozygous (purebred)

b)

heterozygous (hybrid)

28.

Which of the following is a phenotype?

a)

Aa

b)

red hair

c)

heterozygous

d)

DNA

29.

If Spongebob is homozygous for a yellow body (yellow dominant over blue), then his genotype would be ...

a)

Yy

b)

yy

c)

YY

d)

Yb

30.

Genotype refers to the ...

a)

physical expression of the genes

b)

the possible combination of alleles in a gene

c)

whether an allele is dominant or recessive

d)

how an organism will appear

31.

The dominant trait as seen in this punnett square is

a)

yellow pea seeds

b)

green pea seeds

c)

there is no dominant seed

d)

Jolly green giant

32.

What are the possible genotypes for this cross?

a)

TT = 25% Tt= 50% tt=25%

b)

all tall

c)

TT= 75% tt = 25%

d)

Tt = 100%

33.

Which of the following alleles is homozygous recessive?

a)

Tt

b)

tt

c)

TT

d)

T

34.

An organism's appearance or other observable characteristics:

a)

phentoype

b)

genotype

c)

recessive

d)

dominant

35.

An organism's genetic make-up:

a)

phenotype

b)

genotype

c)

dominant

d)

recessive

36.

In the punnett square shown, what must the genotype of the missing parent be?

a)

BB

b)

Bb

c)

bb

d)

Tt

37.

Having two different alleles for a trait (example Hh):

a)

homozygous

b)

heterozygous

c)

dominant

d)

purebred

Genetics and Variables

Total questions: 37

Worksheet time: 1hrs 11mins

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